Science non conventional
Denunciar
ChanekarShantanu2015Seguir
7 de Jun de 2015•0 recomendaciones•159 vistas
Science non conventional
7 de Jun de 2015•0 recomendaciones•159 vistas
Descargar para leer sin conexión
Denunciar
Ciencias
Science non conventional
ChanekarShantanu2015Seguir
Más contenido relacionado
La actualidad más candente
Alternative Energy cprice11
Relative demerits of renewable energy sourcesHirva Salvi
NON CONVENTIONAL SOURCES OF ENERGYNishkarsh Gupta
Energy resources Makwana Bhavesh
Green energy and conservation - ASWIN KUMAR ASWIN SPARKZ XD
Sources of Energytyuytyuyt
Similar a Science non conventional
Sources of energy by aakashAakash Solanki
Energy resourcessushruth kamarushi
Energy-Renewable-Non-Renewable-Fuel-Consumption.pptMichelleTenido2
PhysicsNandeesh Laxetty
Solar Energy PresentationKurt Kublbeck
Non conventional sources of energyJaspinder Singh Sidhu
Último
liters to quarts conversion.pptxAmo Oliverio
Glycan-related Reagents for Extracellular Vesicles (EVs) ResearchTokyo Chemicals Industry (TCI)
THE RAINFOREST.pptxSerhanRalkar
Lecture 2: Types of Semiconductors.pdfvaishalideshmukh22
Imaging the Milky Way with Millihertz Gravitational WavesSérgio Sacani
Blood BankKatie593784
Science non conventional
- 1. 32
- 3. Solar Power Solar powered electrical generation relies on heat engines and photovoltaic's. Examples : Solar cooker Solar heater Solar cells Solar energy, radiant light and heat from the sun, has been harnessed by humans using various equipments.
- 4. Advantages to solar power Solar energy is free - it needs no fuel and produces no waste or pollution. In hot countries, solar power can be used where there is no easy way to get electricity to a remote place. Need for low-power uses such as solar powered garden lights and battery chargers
- 5. Disadvantages to Solar Power Doesn't work at night. Very expensive to build solar power stations. Solar cells cost a great deal compared to the amount of electricity they'll produce in their lifetime. Can be unreliable unless you're in a very hot climate. Satellite image of a solar farm in California
- 6. Is Solar Power Renewable? Solar power is renewable.
- 7. Wind Power Humans used the wind as an energy source for a long time. The Babylonians and Chinese were using wind power to pump water for irrigating crops 4,000 years ago, and sailing boats were around long before that. Wind power was used in the Middle Ages, in Europe, to grind corn, which is where the term "windmill" comes from.
- 8. How Wind Power Works The Sun heats our atmosphere unevenly, so some patches become warmer than others. These warm patches of air rise, cool air blows in to replace them - and we feel a wind blowing. Wind energy can be used by building a tall tower, with a large propellor on it.
- 9. Advantages to Wind power Wind is free, wind farms need no fuel. Produces no waste or greenhouse gases. The land beneath can usually still be used for farming. Wind farms can be tourist attractions. A good method of supplying energy to remote areas.
- 10. Disadvantages of Wind Power The wind is not always predictable. Suitable areas for wind farms are often near the coast, where land is expensive. Can kill birds - migrating flocks tend to like strong winds and may enter the rotating propellor. Can affect television reception if you live nearby. A wind generator makes a constant, low, "swooshing" noise day and night.
- 11. Is Wind Power Renewable? Wind power is renewable.
- 12. Hydroelectricity A dam is built to trap water, usually in a valley where there is an existing lake. Water is allowed to flow through tunnels in the dam, to turn turbines and thus drive generators. Hydro-electricity provides 20% of the world’s power
- 13. Advantages of Hydroelectricity Once the dam is built, the energy is virtually free. No waste or pollution produced. Much more reliable than wind, solar or wave power. Water can be stored above the dam ready to cope with peaks in demand. Hydro-electric power stations can increase to full power very quickly, unlike other power stations. Electricity can be generated constantly.
- 14. Disadvantages to Hydro-electricity The dams are very expensive to build. Building a large dam will flood a very large area upstream, causing problems for animals that used to live there. Finding a suitable site can be difficult - the impact on residents and the environment may be unacceptable. Water quality and quantity downstream can be affected, which can have an impact on plant life.
- 15. Is it Renewable? Hydro-electric power is renewable.
- 16. Biomass Biomass is organic material made from plants and animals (microorganisms). When burned, the chemical energy in biomass is released as heat . E.g. - Methanol (from animal waste) Ethanol Biodiesel(liquid biomass)
- 17. How Biomass Works Plant and animal waste is used to produce fuels such as methanol, natural gas, and oil. We can use rubbish, animal manure, woodchips, seaweed, corn stalks and other wastes. Sugar cane is harvested and taken to a mill, where it is crushed to extract the juice. The juice is used to make sugar, whilst the left-over pulp, called "bagasse" can be burned in a power station. Other solid wastes, can be burned to provide heat, or used to make steam for a power station. Burn fuel>heat water to make steam>steam turns turbine>turbine turns generator>electrical power sent around the country
- 18. Advantages to Biomass It makes sense to use waste materials where we can. The fuel tends to be cheap. Less demand on the Earth's resources.
- 19. Disadvantages to Using Biomass Collecting the waste in sufficient quantities can be difficult. The fuel is burnt, so harmful greenhouse gases are produced. These waste materials are not available all year round.
- 20. Is It Renewable? Biomass is renewable
- 21. Geothermal Power Hot rocks underground heat water to produce steam. We drill holes down to the hot region, steam comes up, is purified and used to drive turbines, which drive electric generators.
- 22. Advantages to Geothermal Power Geothermal energy does not produce any pollution, and does not contribute to the greenhouse effect. The power stations do not take up much room, so there is not much impact on the environment. No fuel is needed. Once you've built a geothermal power station, the energy is almost free. It may need a little energy to run a pump, but this can be taken from the energy being generated.
- 23. Disadvantages to Geothermal Power The big problem is that there are not many places where you can build a geothermal power station. You need hot rocks of a suitable type, at a depth where we can drill down to them. The type of rock above is also important, it must be of a type that we can easily drill through. Sometimes a geothermal site may "run out of steam", perhaps for decades. Hazardous gases and minerals may come up from underground, and can be difficult to safely dispose of.
- 24. Is it Renewable? Geothermal energy is renewable.
- 25. Tidal Power Tidal power works rather like a hydro-electric scheme, except that the dam is much bigger. A huge dam (called a "barrage") is built across a river estuary. When the tide goes in and out, the water flows through tunnels in the dam. The flow of the tides can be used to turn a turbine, or it can be used to push air through a pipe, which then turns a turbine. Large lock gates, like the ones used on canals, allow ships to pass. Only around 20 sites in the world have been identified as possible tidal power stations.
- 26. Advantages to Tidal Power Once built , tidal power is free. It produces no greenhouse gases or other waste. It needs no fuel. It produces electricity reliably. Not expensive to maintain. Tides are totally predictable.
- 27. Disadvantages to Tidal Power A barrage across an estuary is very expensive to build, and affects a very wide area - the environment is changed for many miles upstream and downstream. Many birds rely on the tide uncovering the mud flats so that they can feed. there are few suitable sites for tidal barrages. Only provides power for around 10 hours each day, when the tide is actually moving in or out.
- 28. Is it Renewable? Tidal energy is renewable.
Notas del editor
- Animated countdown timer on textured background (Difficult) Tip: Some shape effects on this slide are created with the Combine Shapes commands. To access this command, you must add it to the Quick Access Toolbar, located above the File tab. To customize the Quick Access Toolbar, do the following: Click the arrow next to the Quick Access Toolbar, and then under Customize Quick Access Toolbar click More Commands. In the PowerPoint Options dialog box, in the Choose commands from list, select All Commands. In the list of commands, click Combine Shapes, and then click Add. To reproduce the donut shape effects on this slide, do the following: On the Home tab, in the Slides group, click Layout, and then click Blank. On the Insert tab, in the Illustrations group, click Shapes, and then under Basic Shapes click Donut. On the slide, drag to draw a donut. Drag the yellow sizing handle so that the donut is roughly 0.25” in thickness. Select the donut. Under Drawing Tools, on the Format tab, in the Size group, in the Height box enter 5” and in the Width box enter 5”. Also under Drawing Tools, on the Format tab, in the Shape Styles group, click Shape Outline and then click No Outline. On the Insert tab, in the Illustrations group, click Shapes, and then under Rectangles click Rectangle. On the slide, drag to draw a rectangle. Select the rectangle. Under Drawing Tools, on the Format tab, in the Size group, in the Height box enter 5.5” and in the Width box enter 0.08”. Also under Drawing Tools, on the Format tab, in the Shape Styles group, click Shape Outline and then click No Outline. Select the rectangle. On the Home tab, in the Clipboard group, click the arrow to the right of Copy, and then click Duplicate. Repeat this process this process 7 times for a total of 9 thin rectangles. Select a duplicate rectangle. Under Drawing Tools, on the Format tab, in the Size group, click the Size and Position dialog box launcher. In the Format Shape dialog box, click Size in the left pane, and in the Size pane, under Size and rotate, in the Rotation box enter 10. Select another duplicate rectangle. Under Drawing Tools, on the Format tab, in the Size group, click the Size and Position dialog box launcher. In the Format Shape dialog box, click Size in the left pane, and in the Size pane, under Size and rotate, in the Rotation box enter 20. Select another duplicate rectangle. Under Drawing Tools, on the Format tab, in the Size group, click the Size and Position dialog box launcher. In the Format Shape dialog box, click Size in the left pane, and in the Size pane, under Size and rotate, in the Rotation box enter 30. Select another duplicate rectangle. Under Drawing Tools, on the Format tab, in the Size group, click the Size and Position dialog box launcher. In the Format Shape dialog box, click Size in the left pane, and in the Size pane, under Size and rotate, in the Rotation box enter 40. Select another duplicate rectangle. Under Drawing Tools, on the Format tab, in the Size group, click the Size and Position dialog box launcher. In the Format Shape dialog box, click Size in the left pane, and in the Size pane, under Size and rotate, in the Rotation box enter 50. Select another duplicate rectangle. Under Drawing Tools, on the Format tab, in the Size group, click the Size and Position dialog box launcher. In the Format Shape dialog box, click Size in the left pane, and in the Size pane, under Size and rotate, in the Rotation box enter 60. Select another duplicate rectangle. Under Drawing Tools, on the Format tab, in the Size group, click the Size and Position dialog box launcher. In the Format Shape dialog box, click Size in the left pane, and in the Size pane, under Size and rotate, in the Rotation box enter 70. Select the last duplicate rectangle. Under Drawing Tools, on the Format tab, in the Size group, click the Size and Position dialog box launcher. In the Format Shape dialog box, click Size in the left pane, and in the Size pane, under Size and rotate, in the Rotation box enter 80. Press and hold CTRL, and then select all of the small thin rectangles. On the Quick Access Toolbar, click Combine Shapes, and then click Shape Union. Also on the Home tab, in the Clipboard group, click Copy, and then click Duplicate. Select the duplicate group of rectangles. On the Home tab, in the Drawing group, click Arrange, point to Rotate, and then click Rotate Right 90°. On the Home tab, in the Edit group, click Select, and then click Select All. Also on the Home tab, in the Drawing group, click Arrange, point to Align, and then do the following: Click Align to Slide. Click Align Middle. Click Align Center. Press and hold CTRL, select the donut shape, and then select the first group of rectangles. On the Quick Access Toolbar, click Combine Shapes, and then click Shape Subtract. Press and hold CTRL, select the donut shape, and then select the second group of rectangles. On the Quick Access Toolbar, click Combine Shapes, and then click Shape Subtract. On the Insert tab, in the Illustrations group, click Shapes, and then under Basic Shapes click Donut. On the slide, drag to draw a donut. Drag a sizing handle so that the donut is roughly 0.5” in thickness. Select the second donut. Under Drawing Tools, on the Format tab, in the Size group, in the Height box enter 5.21” and in the Width box enter 5.21”. Also under Drawing Tools, on the Format tab, in the Shape Styles group, click Shape Outline, and then click No Outline. Press and hold CTRL, select the second donut, and then select the first, segmented donut. On the Quick Access Toolbar, click Combine Shapes, and then click Shape Subtract. Select the remaining donut. Under Drawing Tools, on the Format tab, in the Shape Styles group, click the Format Shape dialog box launcher. In the Format Shape dialog box, click Fill in the left pane, in the Fill pane, click Gradient fill, and then do the following: Click the button next to Preset colors and then click Silver. In the Type list, select Linear. Also in the Format Shape dialog box, click Line Color in the left pane, and then in the Line Color pane click No line. Also in the Format Shape dialog box, click Shadow in the left pane, in the Shadow pane, click the button next to Presets, and then under Outer click Offset Center. Also in the Format Shape dialog box, click 3-D Format in the left pane, in the 3-D Format pane, under Bevel, click the button next to Top and then click Slope. On the Insert tab, in the Illustrations group, click Shapes, and then under Basic Shapes click Donut. On the slide, drag to draw a donut. Drag a sizing handle so that the donut is roughly 0.25” in thickness. Select the new donut. Under Drawing Tools, on the Format tab, in the Shape Styles group, click the Format Shape dialog box launcher. In the Format Shape dialog box, click Fill in the left pane, in the Fill pane, click the button next to Color, click More Colors, and then in the Colors dialog box, on the Custom tab, enter values for Red: 194, Green: 10, and Blue: 6. Also in the Format Shape dialog box, click Line Color in the left pane, and then in the Line Color pane click No line. Also in the Format Shape dialog box, click Size in the left pane, in the Size pane, under Size and rotate, in the Height box enter 5.14” and in the Width box enter 5.14”. Select the new donut. On the Home tab, in the Drawing group, click Arrange, and then click Send Backward. Press and hold CTRL, and then select the two donuts. On the Home tab, in the Drawing group, click Arrange, point to Align, and then do the following: Click Align Selected Objects. Click Align Center. Click Align Middle. With both donuts selected, drag the donuts so that the top edge is roughly 1” from the top edge of the slide. To reproduce the other shape effects on this slide, do the following: On the Insert tab, in the Illustrations group, click Shapes, and then under Rectangles click Rectangle. On the slide, drag to draw a rectangle. Select the rectangle. On the Home tab, in the Drawing tab, click the Format Shape dialog box launcher. In the Format Shape dialog box, click Fill in the left pane, in the Fill pane, click Gradient fill, and then do the following: In the Type list, select Linear. In the Angle box, enter 90. Under Gradient stops, click Add gradient stop or Remove gradient stop until three stops appear in the slider, then customize the gradient stops as follows: Select the first stop in the slider, and then do the following: In the Position box, enter 0%. Click the button next to Color, and then under Theme Colors click Black, Text 1 (first row, first option from the left). In the Transparency box, enter 75%. Select the next stop in the slider, and then do the following: In the Position box, enter 35%. Click the button next to Color, and then under Theme Colors click Black, Text 1 (first row, first option from the left). In the Transparency box, enter 0%. Select the last stop in the slider, and then do the following: In the Position box, enter 100%. Click the button next to Color, and then under Theme Colors click Black, Text 1 (first row, first option from the left). In the Transparency box, enter 100%. Also in the Format Shape dialog box, click Line Color in the left pane, and then in the Line Color pane click No line. Also in the Format Shape dialog box, click Size, and in the Height box enter 7.5, and in the Width box enter 2.83. On the slide, select the rectangle. On the Home tab, in the Drawing group, click Arrange, and then click Send Backward. Also on the Home tab, in the Drawing group, click Arrange, point to Align, and then click Align Middle and Align Center. To reproduce the text effects on this slide, do the following: On the Insert tab, in the Text group, click Text Box. On the slide, drag to draw a text box. Type “3” in the text box, and then select the text. On the Home tab, in the Font group, select Lucida Bright from the Font list, select White, Background 1 from the Font Color list, and then select 96 pt. from the Font Size list. Select the text box. On the Home tab, in the Clipboard group, click the arrow next to Copy, and then click Duplicate. Select the second text box. Change the text to “2.” Select the text box. On the Home tab, in the Clipboard group, click the arrow next to Copy, and then click Duplicate. Select the third text box. Change the text to “1.” Press and hold CTRL, and then select all three text boxes. On the Home tab, in the Drawing group, click Arrange, point to Align, and then do the following: Click Align Selected Objects. Click Align Middle. Click Align Center. With all three text boxes selected, position the text boxes in the center of the two donuts. To reproduce the animation effects on this slide, do the following: On the Home tab, in the Editing group, click Select, and then click Selection Pane. On the slide, select the silver, segmented donut. On the Animations tab, in the Advanced Animation group, click Add Animation, and then under Entrance click Grow & Turn. Also on the Animations tab, in the Timing group, do the following: In the Start list, select With Previous. In the Duration box, enter 1.00. On the slide, select the gradient-fill rectangle. On the Animations tab, in the Advanced Animation group, click Add Animation, and then click More Entrance Effects. In the Add Entrance Effect dialog box, under Subtle, click Expand. Also on the Animations tab, in the Timing group, do the following: In the Start list, select With Previous. In the Duration box, enter 1.00. On the slide, select the red, solid donut. On the Animations tab, in the Advanced Animation group, click Add Animation, and then under Entrance click Fade. Also on the Animations tab, in the Timing group, do the following: In the Start list, select After Previous. In the Duration box, enter 0.25. In the Selection and Visibility pane, select the “3” text box. On the Animations tab, in the Advanced Animation group, click Add Animation, and then under Entrance click Fade. Also on the Animations tab, in the Timing group, in the Duration box enter 0.50. Select the red, solid donut. On the Animations tab, in the Advanced Animation group, click Add Animation, and then under Exit click Wheel. Also on the Animations tab, in the Timing group, do the following: In the Start list, select With Previous. In the Duration box, enter 1.00. In the Selection and Visibility pane, select the “3” text box. On the Animations tab, in the Advanced Animation group, click Add Animation, and then under Exit click Fade. Also on the Animations tab, in the Timing group, do the following: In the Start list, select With Previous. In the Duration box, enter 0.50. In the Delay box, enter 0.50. In the Selection and Visibility pane, select the solid red donut. On the Animations tab, in the Advanced Animation group, click Add Animation, and then under Entrance click Fade. Also on the Animations tab, in the Timing group, do the following: In the Start list, select With Previous. In the Duration box, enter 0.25. In the Delay box, enter 1.00. In the Selection and Visibility pane, select the “2” text box. On the Animations tab, in the Advanced Animation group, click Add Animation, and then under Entrance click Fade. Also on the Animations tab, in the Timing group, do the following: In the Start list, select With Previous. In the Duration box, enter 0.50. In the Delay box, enter 1.00. Select the red, solid donut. On the Animations tab, in the Advanced Animation group, click Add Animation, and then under Exit click Wheel. Also on the Animations tab, in the Timing group, do the following: In the Start list, select With Previous. In the Duration box, enter 1.00. In the Selection and Visibility pane, select the “2” text box. On the Animations tab, in the Advanced Animation group, click Add Animation, and then under Exit click Fade. Also on the Animations tab, in the Timing group, do the following: In the Start list, select With Previous. In the Duration box, enter 0.50. In the Delay box, enter 1.50. In the Selection and Visibility pane, select the “1” text box. On the Animations tab, in the Advanced Animation group, click Add Animation, and then under Entrance click Fade. Also on the Animations tab, in the Timing group, do the following: In the Start list, select With Previous. In the Duration box, enter 0.50. In the Delay box, enter 1.50. In the Selection and Visibility pane, select the solid red donut. On the Animations tab, in the Advanced Animation group, click Add Animation, and then under Entrance click Fade. Also on the Animations tab, in the Timing group, do the following: In the Start list, select With Previous. In the Duration box, enter 0.25. In the Delay box, enter 1.00. In the Selection and Visibility pane, select the “1” text box. On the Animations tab, in the Advanced Animation group, click Add Animation, and then under Exit click Fade Also on the Animations tab, in the Timing group, do the following: In the Start list, select With Previous. In the Duration box, enter 0.50. In the Delay box, enter 2.00. Select the red, solid donut. On the Animations tab, in the Advanced Animation group, click Add Animation, and then under Exit click Wheel. Also on the Animations tab, in the Timing group, do the following: In the Start list, select With Previous. In the Duration box, enter 2.00. To reproduce the background effects on this slide, do the following: On the Insert tab, in the Illustrations group, click Shapes, and then under Rectangles click Rectangle. On the slide, drag to draw a rectangle. Select the rectangle. Under Drawing Tools, on the Format tab, in the Shape Styles group, click the Format Shape dialog box. In the Format Shape dialog box, click Fill in the left pane, in the Fill pane, click Picture or texture fill, and then do the following: Click the button next to Texture and select Brown Marble (fourth row, first option from the left). Clear the Tile picture as texture box. Also in the Format Picture dialog box, click Line Color in the left pane, and in the Line Color pane, click No line. Also in the Format Picture dialog box, click Picture Corrections in the left pane, and in the Picture Corrections pane, under Brightness and contrast, do the following: In the Brightness box, enter -42%. In the Contrast Box, enter -28%. Also in the Format Picture dialog box, click Picture Color in the left pane, and in the Picture Color pane, under Recolor, click the button next to Presets and then click Grayscale. Also in the Format Picture dialog box, click Artistic Effects in the left pane, and in the Artistic Effects pane, do the following: Click the button next to Artistic Effects and then click Blur. In the Radius box, enter 7. Also in the Format Picture dialog box, click Size in the left pane, and then under Size and rotate do the following: In the Height box, enter 7.5. In the Width box, enter 10. On the slide, select the rectangle. On the Home tab, in the Drawing group, click Arrange, point to Align, and then click Align Middle and Align Center. On the Home tab, in the Clipboard group, click the arrow to the right of Copy, and then click Duplicate. Select the second, duplicate rectangle. Under Drawing Tools, on the Format tab, in the Shape Styles group, click the Format Shape dialog box launcher. In the Format Shape dialog box, click Fill in the left pane, in the Fill pane, in the Transparency box, enter 90%. Also in the Format Picture dialog box, click Picture Corrections in the left pane, and in the Picture Corrections pane, under Brightness and contrast, do the following: In the Brightness box, enter 12%. In the Contrast Box, enter 44%. Also in the Format Picture dialog box, click Artistic Effects in the left pane, and in the Artistic Effects pane, do the following: Click the button next to Artistic Effects and then click Blur. In the Radius box, enter 9. On the slide, select the rectangle. On the Home tab, in the Drawing group, click Arrange, point to Align, and then click Align Middle and Align Center. On the Home tab, in the Clipboard group, click the arrow to the right of Copy, and then click Duplicate. Select the third, duplicate rectangle. Under Picture Tools, on the Format tab, in the Adjust group, click Reset Picture. Also under Picture Tools, on the Format tab, in the Picture Styles group, click the Format Picture dialog box launcher. In the Format Picture dialog box, click Fill in the left pane, and then in the Fill pane, do the following: Click the button next to Texture and then click Granite. Select Tile picture as texture. In the Transparency box, enter 94%. Also in the Format Picture dialog box, click Picture Corrections in the left pane, in the Picture Corrections pane, under Brightness and contrast, do the following: In the Brightness box, enter 2%. In the Contrast box, enter 70%. Also in the Format Picture dialog box, click Artistic Effects in the left pane, and then in the Artistic Effects pane, do the following: Click the button next to Artistic Effect and then click Photocopy. In the Detail box, enter 9. On the slide, select the third rectangle. On the Home tab, in the Drawing group, click Arrange, point to Align, and then click Align Middle and Align Center. On the Home tab, in the Clipboard group, click the arrow to the right of Copy, and then click Duplicate. Select the fourth, duplicate rectangle. On the Home tab, in the Drawing group, click the Format Shape dialog box launcher. In the Format Picture dialog box, click Fill in the left pane, in the Fill pane, click Gradient fill, and then do the following: In the Type list, select Radial. In the Direction list, select From Center. Under Gradient stops, click Add gradient stop or Remove gradient stop until two stops appear on the slider. Customize the gradient stops as follows: Select the first stop in the slider, and then do the following: In the Position box, enter 0%. Click the button next to Color, and then under Theme Colors click Black, Text 1 (first row, second option from the left). In the Transparency box, enter 100%. Select the last stop in the slider, and then do the following: In the Position box, enter 100%. Click the button next to Color, and then under Theme Colors click Black, Text 1 (first row, second option from the left). In the Transparency box, enter 50%. On the slide, select the fourth rectangle. On the Home tab, in the Drawing group, click Arrange, point to Align, and then click Align Middle and Align Center. Also on the Home tab, in the Editing group, click Select, and then click Select All. Also on the Home tab, in the Drawing group, click Arrange, and then click Group. On the slide, select the grouped rectangles. Also on the Home tab, in the Clipboard group, click Cut. Also on the Home tab, in the Clipboard group, click the arrow below Paste, and select Paste Special. In the Paste Special dialog box, select Paste, and then under As, select Picture (PNG). Also on the Home tab, in the Drawing group, click Arrange, point to Align and then click Align Middle and Align Center.